Trichloromethanesulfenyl chloride

H301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]

H311 (50.6%): Toxic in contact with skin [Danger Acute toxicity, dermal]

H312 (49.4%): Harmful in contact with skin [Warning Acute toxicity, dermal]

H314 (98.7%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

H330 (98.7%): Fatal if inhaled [Danger Acute toxicity, inhalation]

H335 (46.8%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

P260, P261, P262, P264, P270, P271, P280, P284, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P319, P320, P321, P330, P361+P364, P362+P364, P363, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 79 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

H301: Toxic if swallowed [Danger Acute toxicity, oral]

H312: Harmful in contact with skin [Warning Acute toxicity, dermal]

H315: Causes skin irritation [Warning Skin corrosion/irritation]

H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]

H330: Fatal if inhaled [Danger Acute toxicity, inhalation]

H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]

H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]

P260, P264, P264+P265, P270, P271, P280, P284, P301+P316, P302+P352, P304+P340, P305+P354+P338, P308+P316, P316, P317, P319, P320, P321, P330, P332+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]

P260, P264, P264+P265, P270, P271, P280, P284, P301+P316, P302+P352, P304+P340, P305+P351+P338, P308+P316, P316, P317, P319, P320, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.

Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Refer for medical attention .

Signs and Symptoms of Acute Perchloromethylmercaptan Exposure: Signs and symptoms of acute exposure to perchloromethylmercaptan may lead to liver, heart, and kidney damage. Respiratory effects include coughing, dyspnea (shortness of breath), painful breathing, and lung congestion. Tachycardia (rapid heart rate) is often observed. Nausea, vomiting, abdominal cramping, and diarrhea may also occur. Contact with perchloromethylmercaptan may result in severe dermatitis (red, inflamed skin), conjunctivitis (red, inflamed eyes), and burns with ulceration and severe pain.

Emergency Life-Support Procedures: Acute exposure to perchloromethylmercaptan may require decontamination and life support for the victims. Emergency personnel should wear protective clothing appropriate to the type and degree of contamination. Air-purifying or supplied-air respiratory equipment should also be worn, as necessary. Rescue vehicles should carry supplies such as plastic sheeting and disposable plastic bags to assist in preventing spread of contamination.

Inhalation Exposure:

1. Move victims to fresh air. Emergency personnel should avoid self-exposure to perchloromethylmercaptan.

2. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer oxygen or other respiratory support.

3. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures.

4. Transport to a health care facility.

Dermal/Eye Exposure:

1. Remove victims from exposure. Emergency personnel should avoid self- exposure to perchloromethylmercaptan.

3. Remove contaminated clothing as soon as possible.

4. If eye exposure has occurred, eyes must be flushed with lukewarm water for at least 15 minutes.

5. THOROUGHLY wash exposed skin areas with soap and water.

6. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures.

7. Transport to a health care facility.

Ingestion Exposure:

1. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer oxygen or other respiratory support.

2. DO NOT induce vomiting!

4. Give the victims water or milk: children up to 1 year old, 125 mL (4 oz or 1/2 cup); children 1 to 12 years old, 200 mL (6 oz or 3/4 cup); adults, 250 mL (8 oz or 1 cup). Water or milk should be given only if victims are conscious and alert.

5. Activated charcoal may be administered if victims are conscious and alert. Use 15 to 30 g (1/2 to 1 oz) for children, 50 to 100 g (1-3/4 to 3-1/2 oz) for adults, with 125 to 250 mL (1/2 to 1 cup) of water.

6. Promote excretion by administering a saline cathartic or sorbitol to conscious and alert victims. Children require 15 to 30 g (1/2 to 1 oz) of cathartic; 50 to 100 g (1-3/4 to 3-1/2 oz) is recommended for adults.

7. Transport to a health care facility. (EPA, 1998)

General First Aid:

· Call 911 or emergency medical service.

· Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.

· Move victim to fresh air if it can be done safely.

· Administer oxygen if breathing is difficult.

· If victim is not breathing:

-- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingested or inhaled the substance.

-- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).

-- If no pulse detected or no respiratory medical device available, provide continuous compressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.

· Remove and isolate contaminated clothing and shoes.

· For minor skin contact, avoid spreading material on unaffected skin.

· In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.

· For severe burns, immediate medical attention is required.

· Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed.

· Keep victim calm and warm.

Fight fire from maximum distance. Dike fire control water for later disposal; do not scatter the material. Positive pressure breathing apparatus and special protective clothing should be worn.

This compound is neither flammable nor a serious fire hazard, although it will support combustion. Fight small fires with dry chemical, carbon dioxide, water spray, or foam, and large fires with water spray, fog, or foam. Move containers containing this compound away from fire area if possible. (EPA, 1998)

In case of fire in the surroundings, use appropriate extinguishing media.

· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.

· Keep unauthorized personnel away.

· Stay upwind, uphill and/or upstream.

· Ventilate closed spaces before entering, but only if properly trained and equipped.

· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.

· All equipment used when handling the product must be grounded.

· Do not touch damaged containers or spilled material unless wearing appropriate protective clothing.

· Stop leak if you can do it without risk.

· A vapor-suppressing foam may be used to reduce vapors.

· DO NOT GET WATER INSIDE CONTAINERS.

· Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material.

· Prevent entry into waterways, sewers, basements or confined areas.

Small Spill

· Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain.

· Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal.

Excerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.

SPILL: See ERG Table 1 - Initial Isolation and Protective Action Distances on the UN/NA 1670 datasheet.

FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)

Immediate precautionary measure

· Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.

· For highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.

· For non-highlighted materials: increase the immediate precautionary measure distance, in the downwind direction, as necessary.

· If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.

Small spill:

- ISOLATE in all directions: 30 m (100 ft)

Large spill:

- ISOLATE in all directions: 100 m (300 ft)

- PROTECT people from downwind during DAY time: 0.3 km (0.2 mi)

- PROTECT people from downwind during NIGHT time: 0.4 km (0.2 mi)

- PROTECT people from downwind during DAY time: 0.8 km (0.5 mi)

- PROTECT people from downwind during NIGHT time: 1.3 km (0.8 mi)

Evacuate danger area! Consult an expert! Personal protection: chemical protection suit including self-contained breathing apparatus. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.

1. VENTILATE AREA OF SPILL OR LEAK. 2. COLLECT FOR RECLAMATION OR ABSORB IN VERMICULITE, DRY SAND, EARTH, OR A SIMILAR MATERIAL.

1. BY ABSORBING IT IN VERMICULITE, DRY SAND, EARTH OR SIMILAR MATERIAL & DISPOSING IN SECURED SANITARY LANDFILL. 2. BY DISSOLVING IN COMBUSTIBLE SOLVENT, SUCH AS ALC, & BURNING IN SUITABLE COMBUSTION CHAMBER EQUIPPED WITH APPROPRIATE EFFLUENT GAS CLEANING DEVICE.

SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.

SRP: Contaminated protective clothing should be segregated in such a manner so that there is no direct personal contact by personnel who handle, dispose, or clean the clothing. Quality assurance to ascertain the completeness of the cleaning procedures should be implemented before the decontaminated protective clothing is returned for reuse by the workers. Contaminated clothing should not be taken home at end of shift, but should remain at employee's place of work for cleaning.

The worker should immediately wash the skin when it becomes contaminated.

Work clothing that becomes wet or significantly contaminated should be removed and replaced.

Excerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:

ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. All equipment used when handling the product must be grounded. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. A vapor-suppressing foam may be used to reduce vapors. DO NOT GET WATER INSIDE CONTAINERS. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. Prevent entry into waterways, sewers, basements or confined areas.

SMALL SPILL: Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal. (ERG, 2024)

Separated from food and feedstuffs. See Chemical Dangers. Well closed.

· Wear positive pressure self-contained breathing apparatus (SCBA).

· Wear chemical protective clothing that is specifically recommended by the manufacturer when there is NO RISK OF FIRE.

· Structural firefighters' protective clothing provides thermal protection but only limited chemical protection.

TIH (Toxic Inhalation Hazard) - Term used to describe gases and volatile liquids that are toxic when inhaled. Some are TIH materials themselves, e.g., chlorine, and some release TIH gases when spilled in water, e.g., chlorosilanes. [ERG 2016].

AEGL 1: Notable discomfort, irritation, or certain asymptomatic non-sensory effects. However, the effects are not disabling and are transient and reversible upon cessation of exposure (Unit: ppm)

AEGL 2: Irreversible or other serious, long-lasting adverse health effects or an impaired ability to escape (Unit: ppm)

AEGL 3: Life-threatening health effects or death (Unit: ppm)

Level of Distinct Odor Awareness = 0.016ppm

AEGLs Status: Final

0.013 [ppm]

0.30 [ppm]

0.90 [ppm]

0.1 ppm (0.8 mg/m³)

TWA 0.1 ppm (0.8 mg/m3)

0.1 [ppm]

10 ppm (NIOSH, 2024)

10.0 [ppm]

Excerpts from Documentation for IDLHs: Other human data: It has been stated that perchloromethyl mercaptan is about one­sixth as toxic as phosgene [Prentiss 1937].

See: 594423

8 hr Time Weighted Avg (TWA): 0.1 ppm.

Excursion Limit Recommendation: Excursions in worker exposure levels may exceed three times the TLV-TWA for no more than a total of 30 min during a work day, and under no circumstances should they exceed five times the TLV-TWA, provided that the TLV-TWA is not exceeded.

0.1 ppm as TWA

0.1 ppm [1988]

· Note: Some foams will react with the material and release corrosive/toxic gases.

Small Fire

· CO2 (except for Cyanides), dry chemical, dry sand, alcohol-resistant foam.

Large Fire

· Water spray, fog or alcohol-resistant foam.

· If it can be done safely, move undamaged containers away from the area around the fire.

· Avoid aiming straight or solid streams directly onto the product.

· Dike runoff from fire control for later disposal.

Fire Involving Tanks, Rail Tank Cars or Highway Tanks

· Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles.

· Do not get water inside containers.

· Cool containers with flooding quantities of water until well after fire is out.

· Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.

· ALWAYS stay away from tanks in direct contact with flames.

Australia, Belgium, Finland, Federal Republic of Germany, The Netherlands, Switzerland, & Yugoslavia: 0.1 ppm; USSR: 1 mg/cu m.

A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20 °C.

The substance is severely irritating to the eyes, skin and respiratory tract. Inhalation of high concentrations of the vapour may cause lung oedema. Exposure above the OEL could cause death. The effects may be delayed. Medical observation is indicated.

Perchloromethyl mercaptan appears as a yellow oily liquid with an offensive odor. Insoluble in water. Density 1.72 g / cm3. Hence sinks in water. Nonflammable but supports combustion. Very toxic by inhalation or skin absorption.

Pale-yellow, oily liquid with an unbearable, acrid odor; [NIOSH]

YELLOW OILY LIQUID WITH PUNGENT ODOUR.

Pale-yellow, oily liquid with an unbearable, acrid odor.

OILY, YELLOW LIQUID

YELLOW TO ORANGE-RED

Pale-yellow, oily liquid.

STRONG UNPLEASANT

Unbearable, acrid odor.

297 to 298 °F at 760 mmHg (EPA, 1998)

147-148 °C @ 760 MM HG, 51 °C @ 25 MM HG

147-148 °C

149 °C @760 [mm Hg]

297 °F (Decomposes)

less than 1 mg/mL at 70 °F (NTP, 1992)

SOL IN ETHER; INSOL IN WATER

Solubility in water: none

Insoluble

1.6947 at 68 °F (EPA, 1998) - Denser than water; will sink

Sp gr: 1.7 at 20 °C

Relative density (water = 1): 1.7

1.6947 @ 20°C

6.414 (EPA, 1998) - Heavier than air; will sink (Relative to Air)

6.414 (AIR= 1)

Relative vapor density (air = 1): 6.4

25 mmHg at 123.8 °F (EPA, 1998)

3.0 [mmHg]

Vapor pressure of 65 torr at 70 °C

3 mm Hg at 20 °C.

Vapor pressure, kPa at 20 °C: 0.4

3 [mm Hg] @20 °C

MILDLY DECOMPOSED BY MOIST AIR

DECOMPOSES BETWEEN 148-9 °C

CORROSIVE TO MOST METALS

35.02 DYNES/CM= 0.03502 N/M AT 20 °C

Odor Threshold Low: 0.001 [ppm]

Odor threshold from CHEMINFO

INDEX OF REFRACTION: 1.5484 AT 20 °C

Schoenflies notation

Chemical bond

Insoluble in water. Slowly decomposed by moisture in the air. Reacts with hot water to give carbon dioxide, hydrochloric acid and sulfur.

Sulfides, Organic

Acyl Halides, Sulfonyl Halides, and Chloroformates

PERCHLOROMETHYL MERCAPTAN is incompatible with acids, diazo and azo compounds, halocarbons, isocyanates, aldehydes, alkali metals, nitrides, hydrides, and other strong reducing agents. Reactions with these materials generate heat and in many cases hydrogen gas. Reacts readily with oxidizing agents.

REACTS WITH IRON OR STEEL, EVOLVING CARBON TETRACHLORIDE.

Alkalis, amines, hot iron, water [Note: Corrosive to most metals. Forms HCl, sulfur & carbon dioxide on contact with water].

Alkalis, amines, hot iron, water [Note: Corrosive to most metals. Forms HCl, sulfur & CO2 on contact with water.]

The substance can be absorbed into the body by inhalation of its vapour, through the skin and by ingestion.

inhalation, skin absorption, ingestion, skin and/or eye contact

Cough. Sore throat. Laboured breathing. Nausea. Vomiting. Convulsions.

Redness. Pain.

Abdominal cramps. Further see Inhalation.

irritation eyes, skin, nose, throat; lacrimation (discharge of tears); cough, dyspnea (breathing difficulty), deep breath pain, coarse rales; vomiting; pallor, tachycardia; acidosis; anuria; liver, kidney damage

Eyes, skin, respiratory system, liver, kidneys

Dermatotoxin - Skin burns.

Lacrimator (Lachrymator) - A substance that irritates the eyes and induces the flow of tears.

Toxic Pneumonitis - Inflammation of the lungs induced by inhalation of metal fumes or toxic gases and vapors.

LC50 (rat) = 11 ppm/1H

LD50 Rabbit percutaneous 1,410 mg/kg (95% confidence limit 360-5, 510 mg/kg)

LC50 Rat male inhalation 11 ppm/1 hr (95% confidence limit 10-13 ppm)

LC50 Rat female inhalation 16 ppm/1 hr (95% confidence limit 13-22 ppm).

LD50 Rat oral 83 mg/kg

MEN EXPOSED AT LOWER CONCENTRATIONS /BELOW 45 PPM/ NOTED STRONG EYE, THROAT AND CHEST IRRITATION. NAUSEA ALSO RESULTED FROM EXPOSURE.

... BRIEF EXPOSURE TO LOW CONCN MAY PRODUCE CNS DEPRESSION & LUNG, LIVER, & HEART CONGESTION.

TOXIC BY INGESTION & INHALATION, STRONG IRRITANT TO EYES & SKIN.

... /LIQ/ ... MAY BE ABSORBED THROUGH SKIN IN QUANTITIES TO PRODUCE SYSTEMIC POISONING.

Trichloromethanethiol (perchloromethyl mercaptan) is ... irritating to the respiratory tract.

Perchloromethyl mercaptan was mutagenic in DNA-polymerase-deficient Escherichia coli (Pol A) without metabolic activation and inhibited DNA synthesis by inhibition of DNA polymerase activity in isolated bovine liver nuclei.

Male and female Sprague-Dawley rats were exposed to vapors of perchloromethyl mercaptan for 6 hours/day, 5 days/week for 2 weeks at 0.13, 1.0, and 8.7 mg/cu m. The rats exposed at 8.7 mg/cu m /approx 1 ppm/ ... had labored breathing, tremors, and mild nasal irritation. The lungs were heavier and histologically showed edema. The rats exposed at the two lower concentrations were without symptoms or effects.

Male ICI rats exposed to vapors of perchloromethyl mercaptan for 6 hours/day, 5 days/week for 4 weeks at 2 ppm initially showed respiratory distress; at autopsy, the lungs were congested. No effects were seen in male and female rats exposed for 4 weeks at 0.5 ppm.

Environmental effects from the substance have not been investigated adequately.

Trichloromethanesulfenyl chloride may be released to the environment as a result of its manufacture and use as an intermediate principally in the production of fungicides, including captan and folpet. If trichloromethanesulfenyl chloride is released to soil, it will be expected to slowly hydrolyze. No data were located and no estimations could be made concerning biodegradation in, adsorption to or volatilization from soil. Based upon a measured vapor pressure of 3 mm Hg at 20 °C, volatilization from dry near-surface soil or surfaces may be significant processes. If released to water, it will be expected to slowly hydrolyze. No data were located and no estimations could be made concerning bioconcentration, biodegradation, volatilization, and adsorption to sediment and suspended solids. If released to the atmosphere, it will be expected to exist almost entirely in the vapor phase based upon its vapor pressure. It will be susceptible to photooxidation via vapor phase reaction with photochemically produced hydroxyl radicals with a half-life of 8 days estimated for this process. Exposure to trichloromethanesulfenyl chloride will be primarily occupational via inhalation and possibly dermal contact. (SRC)

Trichloromethanesulfenyl chloride may be released to the environment as a result of its manufacture and use as an intermediate principally in the production of fungicides, including captan and folpet(1). It is also used as an intermediate in other organic syntheses including the production of dyes(2).

TERRESTRIAL FATE: If trichloromethanesulfenyl chloride is released to soil, it will be expected to slowly hydrolyze(1). No data were located and no estimations could be made concerning biodegradation in, adsorption to or volatilization from soil(SRC). Based upon a measured vapor pressure of 3 mm Hg at 20 °C(2), volatilization from dry near-surface soil or surfaces may be significant processes(SRC).

AQUATIC FATE: If trichloromethanesulfenyl chloride is released to water, it will be expected to slowly hydrolyze(1). No data were located and no estimations could be made concerning bioconcentration, biodegradation, volatilization, and adsorption to sediment and suspended solids(SRC).

ATMOSPHERIC FATE: If trichloromethanesulfenyl chloride is released to the atmosphere, it will be expected to exist almost entirely in the vapor phase(1) based upon a reported vapor pressure of 3 mm Hg at 20 °C(2). It will be susceptible to photooxidation via vapor phase reaction with photochemically produced hydroxyl radicals. An atmospheric half-life of 8 days at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm has been calculated for this process based upon an estimated rate constant(3,SRC).

No data were located concerning the biodegradation of trichloromethanesulfenyl chloride either in natural systems or in laboratory studies(SRC). Since trichloromethanesulfenyl chloride slowly hydrolyzes in water(1,2), biodegradation may not be significant relative to hydrolysis(SRC).

Trichloromethanesulfenyl chloride slowly hydrolyzes in aqueous solution via the unstable sulfenic acid and thiophosgene S-oxide to a complex mixture of products including hydrochloric acid, phosgene, thiophosgene, trichloromethanesulfonyl chloride, chlorocarbonylsulfenyl chloride, and bis(trichloromethyl) disulfide(1). The rate constant for the vapor phase reaction of trichloromethanesulfenyl chloride with photochemically produced hydroxyl radicals has been estimated to be 2.0X10-12 cu cm/molecule-sec at 25 °C which corresponds to an atmospheric half-life of 8 days at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm(2,SRC).

Due to a lack of data, it is not possible to estimate a BCF for trichloromethanesulfenyl chloride. (SRC)

Due to lack of data it is not possible to estimate a Koc for trichloroethanesulfenyl chloride. (SRC)

Due to a lack of data, it is not possible to estimate half-lives for volatilization from water and soil for trichloromethanesulfenyl chloride(SRC). Based upon a measured vapor pressure of 3 mm Hg at 20 °C(1), volatilization of trichloromethanesulfenyl chloride from surfaces and near-surface dry soil may be significant processes(SRC).

Exposure to trichloromethanesulfenyl chloride will be primarily occupational via inhalation and possibly dermal contact. (SRC)

NIOSH (NOES Survey 1981-1983) has statistically estimated that 7,790 workers are potentially exposed to trichloromethanesulfenyl chloride in the USA(1). NIOSH (NOHS Survey 1972-1974) has statistically estimated that 37,238 workers are potentiallly exposed to trichloromethanesulfenyl chloride in the USA(2).

Environmental effects from the substance have not been investigated adequately.

Trichloromethanesulfenyl chloride may be released to the environment as a result of its manufacture and use as an intermediate principally in the production of fungicides, including captan and folpet. If trichloromethanesulfenyl chloride is released to soil, it will be expected to slowly hydrolyze. No data were located and no estimations could be made concerning biodegradation in, adsorption to or volatilization from soil. Based upon a measured vapor pressure of 3 mm Hg at 20 °C, volatilization from dry near-surface soil or surfaces may be significant processes. If released to water, it will be expected to slowly hydrolyze. No data were located and no estimations could be made concerning bioconcentration, biodegradation, volatilization, and adsorption to sediment and suspended solids. If released to the atmosphere, it will be expected to exist almost entirely in the vapor phase based upon its vapor pressure. It will be susceptible to photooxidation via vapor phase reaction with photochemically produced hydroxyl radicals with a half-life of 8 days estimated for this process. Exposure to trichloromethanesulfenyl chloride will be primarily occupational via inhalation and possibly dermal contact. (SRC)

Trichloromethanesulfenyl chloride may be released to the environment as a result of its manufacture and use as an intermediate principally in the production of fungicides, including captan and folpet(1). It is also used as an intermediate in other organic syntheses including the production of dyes(2).

TERRESTRIAL FATE: If trichloromethanesulfenyl chloride is released to soil, it will be expected to slowly hydrolyze(1). No data were located and no estimations could be made concerning biodegradation in, adsorption to or volatilization from soil(SRC). Based upon a measured vapor pressure of 3 mm Hg at 20 °C(2), volatilization from dry near-surface soil or surfaces may be significant processes(SRC).

AQUATIC FATE: If trichloromethanesulfenyl chloride is released to water, it will be expected to slowly hydrolyze(1). No data were located and no estimations could be made concerning bioconcentration, biodegradation, volatilization, and adsorption to sediment and suspended solids(SRC).

ATMOSPHERIC FATE: If trichloromethanesulfenyl chloride is released to the atmosphere, it will be expected to exist almost entirely in the vapor phase(1) based upon a reported vapor pressure of 3 mm Hg at 20 °C(2). It will be susceptible to photooxidation via vapor phase reaction with photochemically produced hydroxyl radicals. An atmospheric half-life of 8 days at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm has been calculated for this process based upon an estimated rate constant(3,SRC).

No data were located concerning the biodegradation of trichloromethanesulfenyl chloride either in natural systems or in laboratory studies(SRC). Since trichloromethanesulfenyl chloride slowly hydrolyzes in water(1,2), biodegradation may not be significant relative to hydrolysis(SRC).

Trichloromethanesulfenyl chloride slowly hydrolyzes in aqueous solution via the unstable sulfenic acid and thiophosgene S-oxide to a complex mixture of products including hydrochloric acid, phosgene, thiophosgene, trichloromethanesulfonyl chloride, chlorocarbonylsulfenyl chloride, and bis(trichloromethyl) disulfide(1). The rate constant for the vapor phase reaction of trichloromethanesulfenyl chloride with photochemically produced hydroxyl radicals has been estimated to be 2.0X10-12 cu cm/molecule-sec at 25 °C which corresponds to an atmospheric half-life of 8 days at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm(2,SRC).

Due to a lack of data, it is not possible to estimate a BCF for trichloromethanesulfenyl chloride. (SRC)

Due to lack of data it is not possible to estimate a Koc for trichloroethanesulfenyl chloride. (SRC)

Due to a lack of data, it is not possible to estimate half-lives for volatilization from water and soil for trichloromethanesulfenyl chloride(SRC). Based upon a measured vapor pressure of 3 mm Hg at 20 °C(1), volatilization of trichloromethanesulfenyl chloride from surfaces and near-surface dry soil may be significant processes(SRC).

Exposure to trichloromethanesulfenyl chloride will be primarily occupational via inhalation and possibly dermal contact. (SRC)

NIOSH (NOES Survey 1981-1983) has statistically estimated that 7,790 workers are potentially exposed to trichloromethanesulfenyl chloride in the USA(1). NIOSH (NOHS Survey 1972-1974) has statistically estimated that 37,238 workers are potentiallly exposed to trichloromethanesulfenyl chloride in the USA(2).

1. BY ABSORBING IT IN VERMICULITE, DRY SAND, EARTH OR SIMILAR MATERIAL & DISPOSING IN SECURED SANITARY LANDFILL. 2. BY DISSOLVING IN COMBUSTIBLE SOLVENT, SUCH AS ALC, & BURNING IN SUITABLE COMBUSTION CHAMBER EQUIPPED WITH APPROPRIATE EFFLUENT GAS CLEANING DEVICE.

If ... THERE IS NO FIRE, go directly to the Table of Initial Isolation and Protective Action Distances /(see table below)/ ... to obtain initial isolation and protective action distances. IF THERE IS A FIRE, or IF A FIRE IS INVOLVED, go directly to the appropriate guide /(see guide(s) below)/ and use the evacuation information shown under PUBLIC SAFETY.

Table: Table of Isolation and Protective Action Distances for Perchloromethylmercaptan [Table#2341]

/GUIDE 157: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE/WATER -SENSITIVE)/ Health: TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns, or death. Reaction with water or moist air will release toxic, corrosive or flammable gases. Reaction with water may generate much heat which will increase the concentration of fumes in the air. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

/GUIDE 157: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE/WATER -SENSITIVE)/ Fire or Explosion: Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Vapors may accumulate in confined areas (basement, tanks, hopper/tank cars etc.). Substance will react with water (some violently), releasing corrosive and/or toxic gases. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or contaminated with water.

/GUIDE 157: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE/WATER -SENSITIVE)/ Public Safety: CALL Emergency Response Telephone Number ... . As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. Ventilate enclosed areas.

For more DOT Emergency Guidelines (Complete) data for TRICHLOROMETHANESULFENYL CHLORIDE (9 total), please visit the HSDB record page.

UN 1670; Perchloro-methyl-mercaptan

IMO 6.1; Perchloro-methyl-mercaptan

No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./

The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials.

The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.

Poison Inhalation Hazard

Unbreakable packaging. Put breakable packaging into closed unbreakable container. Do not transport with food and feedstuffs. Marine pollutant.

UN Hazard Class: 6.1; UN Pack Group: I